Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"Fixes from all around the place:
- hyper-V 32-bit PAE guest kernel fix
- two IRQ allocation fixes on certain x86 boards
- intel-mid boot crash fix
- intel-quark quirk
- /proc/interrupts duplicate irq chip name fix
- cma boot crash fix
- syscall audit fix
- boot crash fix with certain TSC configurations (seen on Qemu)
- smpboot.c build warning fix"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, pageattr: Prevent overflow in slow_virt_to_phys() for X86_PAE
ACPI, irq, x86: Return IRQ instead of GSI in mp_register_gsi()
x86, intel-mid: Create IRQs for APB timers and RTC timers
x86: Don't enable F00F workaround on Intel Quark processors
x86/irq: Fix XT-PIC-XT-PIC in /proc/interrupts
x86, cma: Reserve DMA contiguous area after initmem_init()
i386/audit: stop scribbling on the stack frame
x86, apic: Handle a bad TSC more gracefully
x86: ACPI: Do not translate GSI number if IOAPIC is disabled
x86/smpboot: Move data structure to its primary usage scope
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index b436fc7..a142e77 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -397,7 +397,7 @@
/* Don't set up the ACPI SCI because it's already set up */
if (acpi_gbl_FADT.sci_interrupt == gsi)
- return gsi;
+ return mp_map_gsi_to_irq(gsi, IOAPIC_MAP_ALLOC);
trigger = trigger == ACPI_EDGE_SENSITIVE ? 0 : 1;
polarity = polarity == ACPI_ACTIVE_HIGH ? 0 : 1;
@@ -604,14 +604,18 @@
int acpi_gsi_to_irq(u32 gsi, unsigned int *irqp)
{
- int irq = mp_map_gsi_to_irq(gsi, IOAPIC_MAP_ALLOC | IOAPIC_MAP_CHECK);
+ int irq;
- if (irq >= 0) {
+ if (acpi_irq_model == ACPI_IRQ_MODEL_PIC) {
+ *irqp = gsi;
+ } else {
+ irq = mp_map_gsi_to_irq(gsi,
+ IOAPIC_MAP_ALLOC | IOAPIC_MAP_CHECK);
+ if (irq < 0)
+ return -1;
*irqp = irq;
- return 0;
}
-
- return -1;
+ return 0;
}
EXPORT_SYMBOL_GPL(acpi_gsi_to_irq);
diff --git a/arch/x86/kernel/apb_timer.c b/arch/x86/kernel/apb_timer.c
index 5972b10..b708738 100644
--- a/arch/x86/kernel/apb_timer.c
+++ b/arch/x86/kernel/apb_timer.c
@@ -185,8 +185,6 @@
irq_modify_status(adev->irq, 0, IRQ_MOVE_PCNTXT);
irq_set_affinity(adev->irq, cpumask_of(adev->cpu));
- /* APB timer irqs are set up as mp_irqs, timer is edge type */
- __irq_set_handler(adev->irq, handle_edge_irq, 0, "edge");
}
/* Should be called with per cpu */
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 00853b2..ba6cc04 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -1297,7 +1297,7 @@
unsigned int value, queued;
int i, j, acked = 0;
unsigned long long tsc = 0, ntsc;
- long long max_loops = cpu_khz;
+ long long max_loops = cpu_khz ? cpu_khz : 1000000;
if (cpu_has_tsc)
rdtscll(tsc);
@@ -1383,7 +1383,7 @@
break;
}
if (queued) {
- if (cpu_has_tsc) {
+ if (cpu_has_tsc && cpu_khz) {
rdtscll(ntsc);
max_loops = (cpu_khz << 10) - (ntsc - tsc);
} else
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index 1ef4562..9cc6b6f 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -213,12 +213,13 @@
{
#ifdef CONFIG_X86_F00F_BUG
/*
- * All current models of Pentium and Pentium with MMX technology CPUs
+ * All models of Pentium and Pentium with MMX technology CPUs
* have the F0 0F bug, which lets nonprivileged users lock up the
* system. Announce that the fault handler will be checking for it.
+ * The Quark is also family 5, but does not have the same bug.
*/
clear_cpu_bug(c, X86_BUG_F00F);
- if (!paravirt_enabled() && c->x86 == 5) {
+ if (!paravirt_enabled() && c->x86 == 5 && c->x86_model < 9) {
static int f00f_workaround_enabled;
set_cpu_bug(c, X86_BUG_F00F);
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index b553ed8..344b63f 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -447,15 +447,14 @@
sysenter_audit:
testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%ebp)
jnz syscall_trace_entry
- addl $4,%esp
- CFI_ADJUST_CFA_OFFSET -4
- movl %esi,4(%esp) /* 5th arg: 4th syscall arg */
- movl %edx,(%esp) /* 4th arg: 3rd syscall arg */
- /* %ecx already in %ecx 3rd arg: 2nd syscall arg */
- movl %ebx,%edx /* 2nd arg: 1st syscall arg */
- /* %eax already in %eax 1st arg: syscall number */
+ /* movl PT_EAX(%esp), %eax already set, syscall number: 1st arg to audit */
+ movl PT_EBX(%esp), %edx /* ebx/a0: 2nd arg to audit */
+ /* movl PT_ECX(%esp), %ecx already set, a1: 3nd arg to audit */
+ pushl_cfi PT_ESI(%esp) /* a3: 5th arg */
+ pushl_cfi PT_EDX+4(%esp) /* a2: 4th arg */
call __audit_syscall_entry
- pushl_cfi %ebx
+ popl_cfi %ecx /* get that remapped edx off the stack */
+ popl_cfi %ecx /* get that remapped esi off the stack */
movl PT_EAX(%esp),%eax /* reload syscall number */
jmp sysenter_do_call
diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c
index 8af81710..e7cc537 100644
--- a/arch/x86/kernel/i8259.c
+++ b/arch/x86/kernel/i8259.c
@@ -111,8 +111,7 @@
{
disable_irq_nosync(irq);
io_apic_irqs &= ~(1<<irq);
- irq_set_chip_and_handler_name(irq, &i8259A_chip, handle_level_irq,
- i8259A_chip.name);
+ irq_set_chip_and_handler(irq, &i8259A_chip, handle_level_irq);
enable_irq(irq);
}
diff --git a/arch/x86/kernel/irqinit.c b/arch/x86/kernel/irqinit.c
index 44f1ed4..4de73ee 100644
--- a/arch/x86/kernel/irqinit.c
+++ b/arch/x86/kernel/irqinit.c
@@ -70,7 +70,6 @@
void __init init_ISA_irqs(void)
{
struct irq_chip *chip = legacy_pic->chip;
- const char *name = chip->name;
int i;
#if defined(CONFIG_X86_64) || defined(CONFIG_X86_LOCAL_APIC)
@@ -79,7 +78,7 @@
legacy_pic->init(0);
for (i = 0; i < nr_legacy_irqs(); i++)
- irq_set_chip_and_handler_name(i, chip, handle_level_irq, name);
+ irq_set_chip_and_handler(i, chip, handle_level_irq);
}
void __init init_IRQ(void)
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 235cfd3..ab08aa2 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -1128,7 +1128,6 @@
setup_real_mode();
memblock_set_current_limit(get_max_mapped());
- dma_contiguous_reserve(max_pfn_mapped << PAGE_SHIFT);
/*
* NOTE: On x86-32, only from this point on, fixmaps are ready for use.
@@ -1159,6 +1158,7 @@
early_acpi_boot_init();
initmem_init();
+ dma_contiguous_reserve(max_pfn_mapped << PAGE_SHIFT);
/*
* Reserve memory for crash kernel after SRAT is parsed so that it
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 2d5200e..4d2128a 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -102,8 +102,6 @@
DEFINE_PER_CPU_SHARED_ALIGNED(struct cpuinfo_x86, cpu_info);
EXPORT_PER_CPU_SYMBOL(cpu_info);
-static DEFINE_PER_CPU(struct completion, die_complete);
-
atomic_t init_deasserted;
/*
@@ -1318,6 +1316,8 @@
fixup_irqs();
}
+static DEFINE_PER_CPU(struct completion, die_complete);
+
int native_cpu_disable(void)
{
int ret;
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index b6025f9..b7e50bb 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -1166,14 +1166,17 @@
x86_init.timers.tsc_pre_init();
- if (!cpu_has_tsc)
+ if (!cpu_has_tsc) {
+ setup_clear_cpu_cap(X86_FEATURE_TSC_DEADLINE_TIMER);
return;
+ }
tsc_khz = x86_platform.calibrate_tsc();
cpu_khz = tsc_khz;
if (!tsc_khz) {
mark_tsc_unstable("could not calculate TSC khz");
+ setup_clear_cpu_cap(X86_FEATURE_TSC_DEADLINE_TIMER);
return;
}
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index ae242a7..36de293 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -409,7 +409,7 @@
psize = page_level_size(level);
pmask = page_level_mask(level);
offset = virt_addr & ~pmask;
- phys_addr = pte_pfn(*pte) << PAGE_SHIFT;
+ phys_addr = (phys_addr_t)pte_pfn(*pte) << PAGE_SHIFT;
return (phys_addr | offset);
}
EXPORT_SYMBOL_GPL(slow_virt_to_phys);
diff --git a/arch/x86/platform/intel-mid/sfi.c b/arch/x86/platform/intel-mid/sfi.c
index 3c53a90..c14ad34 100644
--- a/arch/x86/platform/intel-mid/sfi.c
+++ b/arch/x86/platform/intel-mid/sfi.c
@@ -106,6 +106,7 @@
mp_irq.dstapic = MP_APIC_ALL;
mp_irq.dstirq = pentry->irq;
mp_save_irq(&mp_irq);
+ mp_map_gsi_to_irq(pentry->irq, IOAPIC_MAP_ALLOC);
}
return 0;
@@ -176,6 +177,7 @@
mp_irq.dstapic = MP_APIC_ALL;
mp_irq.dstirq = pentry->irq;
mp_save_irq(&mp_irq);
+ mp_map_gsi_to_irq(pentry->irq, IOAPIC_MAP_ALLOC);
}
return 0;
}